2008 pyroclastic flows - unanalyzed scoria. Single 15-cm clast of banded brown and light-gray pumice. Collect entire clast and put in 2 bags, A and B. Collected from exposed basal unit of massive pfs. Banded pumice/scoria with cm-scale bands with sharp to moderately sharp edges. Dark band is dark olive gray - light is 10%k with very faint yellow tinge. Dark bands have large amphiboles (up to 1 cm) not found in light bands.
Geology of Kasatochi volcano, Aleutian Islands, Alaska
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